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Joined: May 2004
Posts: 621
jyboygenius
Senior Member
jyboygenius
2001 Silver Toyota Celica
Senior Member
2001 Toyota Celica

Joined: May 2004
Posts: 621
Colorado, USA
Oct 17, 3:19pm - #302225 
AWD systems- Performance wise

Don't know if you anything about the complexities of AWD, but was wondering which system you preferred. Please state a reason why

Here are a few more famous sytems:
Subaru
Mitsubishi
VW/Audi
Nissan/Infiniti
Volvo
BMW
Porshce

That's all I can think of for now.


Enzo Ferrari " You may be a Ferrari owner; but, you may not necessarly be a Ferrari Driver."
Joined: May 2003
Posts: 5,346
spaztikid
dikitzaps
spaztikid
dikitzaps
1974 Toyota Celica

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Posts: 5,346
LA
Oct 17, 3:22pm - #302226 
it depends on the car...

lots of AWD cars have a really skewed ratio... basically, 85% of the power will be sent to the rear wheels and 15% to the front...

Joined: Jan 2004
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eric_h
2low2slow
eric_h

2low2slow
2002 Toyota Celica GT

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Posts: 1,612
St.George, UT
Oct 17, 3:35pm - #302227 
but some are adjustable^^^ most change with acceleration too and are 60/40 like my moms outback


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A boats a boat, but the mystery box could be anything....Even a boat!
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eddie_725
Senior Member
eddie_725
1985 Silver Toyota Celica
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1985 Toyota Celica

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Posts: 422
Miami, Fl
Oct 17, 3:48pm - #302228 
AWD is the best thumbsup


"if pimpin' is dead then I'm bring it back
mata fact it never died so I take that back" -Lil Wayne-
Joined: May 2004
Posts: 621
jyboygenius
Senior Member
jyboygenius
2001 Silver Toyota Celica
Senior Member
2001 Toyota Celica

Joined: May 2004
Posts: 621
Colorado, USA
Oct 17, 4:19pm - #302229 
^^Gee, thanks mensa.


Enzo Ferrari " You may be a Ferrari owner; but, you may not necessarly be a Ferrari Driver."
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spaztikid
dikitzaps
spaztikid
dikitzaps
1974 Toyota Celica

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Posts: 5,346
LA
Oct 17, 4:25pm - #302230 
rwd > awd

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Posts: 2,016
Haulin_A_Doo
Specialist
Haulin_A_Doo
Specialist

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Ontario
Oct 17, 4:31pm - #302231 
Not an AWD fan. thumbsdown

Its an advantage at launch & in slippery condition, maybe slighly on some corners, however the drive system adds weight, rotating mass & friction. Not good for sports cars. Good for dirt rally though.

Mid engine RWD will always be the best for sports cars because of weight balancing, cornering & traction when the weight shifts to the back tires.

FWD is however the most practical for slippery conditions and everyday use. Most FWD's can't corner worth a damn, Celi's are the exception to this rule because of fine engineering & excellent weight balancing. There aren't many FWD cars that feel as balanced as a Celi.

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Haulin_A_Doo
Specialist
Haulin_A_Doo
Specialist

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Ontario
Oct 17, 4:32pm - #302232 
RWD's with front engines suck & always will. Traction is so bad it makes them useless for corners or any condition that you need traction. thumbsdown

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Posts: 290
vejita_13
Member
vejita_13

Member
2002 Toyota Celica GT

Joined: Dec 2002
Posts: 290
SACRAMENTO, CA
Oct 17, 4:36pm - #302233 
Originally Posted by Haulin_A_Doo
Not an AWD fan. thumbsdown

Its an advantage at launch & in slippery condition, maybe slighly on some corners, however the drive system adds weight, rotating mass & friction. Not good for sports cars. Good for dirt rally though.

Mid engine RWD will always be the best for sports cars because of weight balancing, cornering & traction when the weight shifts to the back tires.

FWD is however the most practical for slippery conditions and everyday use. Most FWD's can't corner worth a damn, Celi's are the exception to this rule because of fine engineering & excellent weight balancing. There aren't many FWD cars that feel as balanced as a Celi.


whats the weight distribution on the celi?

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Posts: 744
Blue_Bomber
Senior Member
Blue_Bomber
2000 Spectra Blue Mica Toyota Celica
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2000 Toyota Celica

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Freehold, NJ
Oct 17, 4:57pm - #302234 
AWD makes the car too heavy. My friend with a GT +axle back took out his friend's WRX, and another one of my friends took out an Evo MR in his stock GTS. thumbsdown Off the line, AWD is good, especially if you have a lot of power, but up top, the weight and distribution of power to twice as many wheels as normal hurts acceleration a lot.
Originally Posted by vejita_13
whats the weight distribution on the celi?
63/37

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Posts: 422
eddie_725
Senior Member
eddie_725
1985 Silver Toyota Celica
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1985 Toyota Celica

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Posts: 422
Miami, Fl
Oct 17, 5:06pm - #302235 
So Haulin your saying the Supra sucks the s2000 and Corvettes suck cause there Front engine RWD.

What got a problem your lucky the monitor is holding me back angry

rofl rofl
just playing around but my point is not all FR cars suck


"if pimpin' is dead then I'm bring it back
mata fact it never died so I take that back" -Lil Wayne-
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RevMonster
Masta OC
RevMonster

Masta OC
2003 Toyota Celica

Joined: Oct 2003
Posts: 2,030
Orange County, Ca
Oct 17, 5:07pm - #302236 
Originally Posted by Haulin_A_Doo
RWD's with front engines suck & always will. Traction is so bad it makes them useless for corners or any condition that you need traction. thumbsdown


The problem is that you can only have so much power at the front wheels. On a car like the Corvette, I would much rather have a little less weight on the drive wheels than deal with 400hp torque steer. spineyes


I'm just a crosshair
I'm just a shot away from you
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Posts: 283
RaptorGTS
Member
RaptorGTS
2000 Silver Toyota Celica
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2000 Toyota Celica

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Posts: 283
Oct 17, 7:21pm - #302237 
i love evos

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jyboygenius
Senior Member
jyboygenius
2001 Silver Toyota Celica
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2001 Toyota Celica

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Posts: 621
Colorado, USA
Oct 17, 10:34pm - #302238 
Any mechanics here?? Is Audi's AWD system a FWD biased with slight RWD attached?? That's the impression I get, given their FWD tendencies in the A4.

Subaru's AWD system may be the most advanced outta that group. It's standard, costs less comparitively and is the lightest.


Enzo Ferrari " You may be a Ferrari owner; but, you may not necessarly be a Ferrari Driver."
Joined: Jun 2004
Posts: 264
GT4
Member
GT4

Member
1993 Toyota Celica Alltrac

Joined: Jun 2004
Posts: 264
Boston
Oct 17, 10:51pm - #302239 
It all depends on what you are planning to use the car for. To understand each system, you need to understand how differential works. I'm sure these sites can explain them better than me.

http://autozine.kyul.net/technical_school/tech_index.htm#Traction%20and%20Brake
http://auto.howstuffworks.com/differential.htm

FYI, AWD system in my car use center viscous coupling LSD. Power splits 50:50 between front and rear in normal condition. Some of alltracs has TORSEN LSD in the rear.


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93 ST185, 91 ST185 (sold), 99 Solara SEV6
Boston
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JBing
Pizza Geek
JBing

Pizza Geek
2002 Toyota Celica GT

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Posts: 1,549
Detroit
Oct 17, 10:52pm - #302240 
they are nice but I've heard up 35% of the power can be lost in the drive-train


FS: 19" ADR M Sports
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GT4
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GT4

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1993 Toyota Celica Alltrac

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Posts: 264
Boston
Oct 17, 11:14pm - #302241 
I believe, there is no fixed percent power loss in awd system. What I'm saying is that you might find 25% power loss in 200 hp car (150 awhp), but the number will not be the same for 400 hp car. (not 300 awhp). KTR Performance in MA who specializes in AWD Dyno, estimates 25% loss in many cars they have tested (mostly Porsche, Subaru and Audi AWD cars).


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93 ST185, 91 ST185 (sold), 99 Solara SEV6
Boston
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jyboygenius
Senior Member
jyboygenius
2001 Silver Toyota Celica
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2001 Toyota Celica

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Colorado, USA
Oct 18, 9:12am - #302242 
Subarus come with Torsen LSD standard eek. Pretty impressive system. Good find GT4. I'm gonna read up on that.


Enzo Ferrari " You may be a Ferrari owner; but, you may not necessarly be a Ferrari Driver."
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